LONDON, ENGLAND - FEBRUARY 15: (UK TABLOID NEWSPAPERS OUT) Adele onstage at The Brit Awards 2011 held at The O2 Arena on February 15, 2011 in London, England. (Photo by Dave Hogan/Getty Images)

5. (2) If I Die Young-The Band Perry

INDIANAPOLIS, IN - JULY 31: Kimberly Perry of The Band Perry performs on stage prior to the NASCAR Sprint Cup Series Brickyard 400 at Indianapolis Motor Speedway on July 31, 2011 in Indianapolis, Indiana. (Photo by Mike Ehrmann/Getty Images)

6. (11) Save Me, San Francisco-Train

LOS ANGELES - NOVEMBER 15: Train singer Pat Monahan performs at the taping of the 5th Annual "A Home for the Holidays" at Ren Mar Studios on November 15, 2003 in Los Angeles, California. The CBS Special, celebrating the joys of adoption, is to air on December 23, 2003. (Photo by Kevin Winter/Getty Images)

LOS ANGELES, CA - JULY 08: Musician Adam Levine of the band Maroon 5 and singer Christina Aguilera perform at the Maroon 5 Video Shoot for "Moves Like Jagger" with Christina Aguilera on July 8, 2011 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for A&M/Octone)

9. (14) Price Tag-Jessie J.

GLASTONBURY, ENGLAND - JUNE 25: Jessie J performs live on the other stage during the Glastonbury Festival at Worthy Farm, Pilton on June 25, 2011 in Glastonbury, England. The festival, which started in 1970 when several hundred hippies paid 1 GBP to attend, has grown into Europe's largest music festival attracting more than 175,000 people over five days. (Photo by Ian Gavan/Getty Images)

10. (5) The Edge Of Glory-Lady Gaga

TORONTO, ON - JUNE 19: Lady Gaga performs on stage at the 2011 MuchMusic Video Awards on June 19, 2011 in Toronto, Canada. (Photo by Jag Gundu/Getty Images)

UNIVERSAL CITY, CA - AUGUST 07: (L-R) Singers apl.de.ap, Fergie and Taboo of the The Black Eyed Peas arrive at the 2011 Teen Choice Awards held at the Gibson Amphitheatre on August 7, 2011 in Universal City, California. (Photo by Jason Merritt/Getty Images)

NEW YORK - AUGUST 05: Musician Gavin DeGraw performs at the Schick Intuition Kiss & Tell summer party at Stone Rose at the Time Warner Center on August 5, 2010 in New York City. (Photo by Jason Kempin/Getty Images)

17. (20) Arms-Christina Perri

NAPA, CA - NOVEMBER 13: Christina Perri poses at Aloft Hotels Presents Live in the Vineyard on November 13, 2010 in Napa, California. (Photo by Tim Mosenfelder/Getty Images for Aloft Hotels)

18. (15) Every Teardrop Is A Waterfall-Coldplay

WESTWOOD, CA - AUGUST 03: Musicians Will Champion and Chris Martin of Coldplay perform onstage at Coldplay in Concert presented by Samsung AT&T Summer Krush 2011 benefitting the GRAMMY Foundation and its music education programs for high school students and schools. More info at grammyintheschools.com. Held at UCLA Tennis Center on August 3, 2011 in Westwood, California. (Photo by John Shearer/Getty Images For The Recording Academy)

19. (18) Pumped Up Kicks-Foster The People

INDIO, CA - APRIL 17: Musical group Foster the People performs during Day 3 of the Coachella Valley Music & Arts Festival 2011 held at the Empire Polo Club on April 17, 2011 in Indio, California. (Photo by Karl Walter/Getty Images)

20. (22) Party Rock Anthem-LMFAO

NEW YORK, NY - AUGUST 11: DJs SkyBlu (L) and Redfoo of the group LMFAO attend Billboard's Summer Blowout Concert at Pier 36 on August 11, 2011 in New York City. (Photo by Mike Coppola/Getty Images)

21. (23) Someone Like You-Adele

NEW YORK - SEPTEMBER 17: Singer Adele attends 2009 VH1 Divas at Brooklyn Academy of Music on September 17, 2009 in New York City. (Photo by Jason Kempin/Getty Images)

22. (21) All That You Are-Goo Goo Dolls

NEW YORK, NY - JULY 22: Goo Goo Dolls singer/guitar player John Rzeznik performs on ABC's "Good Morning America" at Rumsey Playfield, Central Park on July 22, 2011 in New York City. (Photo by Mike Coppola/Getty Images)

23. (24) Hey Mama-Mat Kearney

NEW YORK, NY - AUGUST 04: Musician Mat Kearney performs at the Apple Store Soho on August 4, 2011 in New York City. (Photo by Jason Kempin/Getty Images)

LOS ANGELES, CA - JANUARY 29: The Red Hot Chili Peppers perform onstage at the 2010 MusiCares Person Of The Year Tribute To Neil Young at the Los Angeles Convention Center on January 29, 2010 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

26. (26) The Cave-Mumford & Sons

INDIO, CA - APRIL 16: Mumford & Sons performs during Day 2 of the Coachella Valley Music & Arts Festival 2011 held at the Empire Polo Club on April 16, 2011 in Indio, California. (Photo by Michael Heiman/Getty Images)

27. (30) Nothing-The Script

NEWPORT, ISLE OF WIGHT - JUNE 12: Danny O'Donoghue of The Script performs live on the main stage during day three of the Isle of Wight Festival 2011 at Seaclose Park on June 12, 2011 in Newport, Isle of Wight. (Photo by Simone Joyner/Getty Images)

28. (28) The Last Goodbye-David Cook

NEW YORK, NY - JUNE 28: David Cook (center) poses for photos at Best Buy on June 28, 2011 in New York City. (Photo by Astrid Stawiarz/Getty Images)

29. (re-entry) Lost In You-Three Days Grace

LAS VEGAS - DECEMBER 04: Musicians Barry Stock, Adam Gontier, Neil Sanderson and Brad Walst of the group Three Days Grace poses in the press room with the Rock Single of the Year Award at the 2006 Billboard Music Awards at the MGM Grand Garden Arena December 4, 2006 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)